t-zero n. 〔俄語(yǔ)〕【宇宙空間技術(shù)】(人造衛(wèi)星等的)發(fā)射時(shí)間。
zero n. (pl. zeros, zeroes) 1.【數(shù)學(xué)】零;零號(hào)。 2.零位;零點(diǎn),起點(diǎn);(溫度表的)零度,冰點(diǎn);座標(biāo)原點(diǎn);無(wú)。 3.最低點(diǎn);【天文學(xué)】天底;【航空】零高度。 4.沒(méi)價(jià)值的人[物]。 5.【軍事】= zero hour. the absolute zero 【物理學(xué)】絕對(duì)零度〔-273.16℃〕。 the air zero 原子彈空中爆炸中心。 fly at zero 超低空(1000英尺高度以下的)飛行。 vt. 1.把(調(diào)節(jié)器等)調(diào)整到零位。 2.把…減少到零位。 zero in 1. 調(diào)整(槍炮的)射距,把(槍炮等的標(biāo)尺)調(diào)整到標(biāo)準(zhǔn)無(wú)風(fēng)部位瞄準(zhǔn)。 2. 把(火力)對(duì)準(zhǔn)目標(biāo) (on)。 zero out 給…以免稅待遇(to zero out funding for public broadcasting 對(duì)用于公共廣播的經(jīng)費(fèi)實(shí)行免稅)。 adj. 1.零(度)的。 2.【氣象學(xué)】云幕低于50英尺,能見(jiàn)度小于165英尺的。
Research on transient process of rlc second order circuit under sinusoidal excitation and non - zero state 正弦激勵(lì)非零狀態(tài)下的二階電路暫態(tài)過(guò)程的研究
Beam string structure needs determine the initial geometry in zero state and initial prestressing force distribute geometry before analysing . this text pointed out the difference from determining the shape of bss to form - finding or force - finding of membrane structure 張弦梁在受力分析前需要確定其零狀態(tài)放樣幾何及初始預(yù)應(yīng)力分布。本文論述了張弦梁結(jié)構(gòu)的形狀確定與膜結(jié)構(gòu)的找形或找力分析的區(qū)別。
Then by a decomposition method , we proved that every state in the decentralized controllable subspace could be conducted to zero state by time - varying decentralized control , which meant that the decentralized controllable subspace had similar property with centralized controllable subspace 接著,我們用一種逐步分解逼近的方法證明了分散能控子空間中的每一個(gè)狀態(tài)都是分散能控的,這說(shuō)明分散能控子空間和集中能控子空間有類似的性質(zhì)。
A new method named inverse analysis of construction process is proposed to determinate the ideal status in each step of construction , including internal force and the coordinate of points . from the initial value that is the internal force and the geometrical coordinate of the initial state , according to the construction sequence to remove the cable - strut tensile structure , it can determinate the zero state of the structure 該方法從弦支穹頂結(jié)構(gòu)設(shè)計(jì)理想成形狀態(tài)(初始態(tài))出發(fā),以成形時(shí)索、桿內(nèi)力和幾何狀態(tài)為初值,按照一定施工順序依次拆除各圈索桿,從而確定各個(gè)階段的結(jié)構(gòu)施工控制參數(shù)(包括索力和坐標(biāo)) ,最終確定結(jié)構(gòu)的零狀態(tài)。
The clamping diodes conduct only once in a switching period , and the resonant inductance current is smaller in zero state , leading to a higher efficiency and reduced duty cycle loss . the operation principle of the improved converter and the comparison with the original converter are analyzed in this paper . the effect of the blocking capacitor in series with the transformer or resonant inductance is discussed , and a best scheme is determined 本文將諧振電感和變壓器交換位置,使變壓器與滯后橋臂相連,這樣箝位二極管在一個(gè)開(kāi)關(guān)周期中只導(dǎo)通一次,同時(shí)零狀態(tài)時(shí)諧振電感電流較小,有利于提高變換效率和減小占空比丟失,本文分析改進(jìn)后變換器的工作原理,并與改進(jìn)前的變換器進(jìn)行對(duì)比,討論隔直電容在不同位置對(duì)變換器工作的影響,確定一種最佳工程方案。
Over many years , the china ' s academic world has made research into the improvement on the city social security system , of course , with more success , yet , to some degree , neglecting its equivalent in rural areas . so , practically speaking , rural social security system is in an imperfect or zero state in our country . for example , some social security items , such as old - age pension , medical insurance , industrial injury insurance and birth insurance etc . , have rural residents excluded 長(zhǎng)期以來(lái),我國(guó)學(xué)術(shù)界在理論上對(duì)城市社會(huì)保障問(wèn)題比較關(guān)注,研究成果也比較多,而對(duì)占全國(guó)總?cè)丝?0的廣大農(nóng)民的農(nóng)村社會(huì)保障問(wèn)題則重視不夠,研究得也很不深入,以致在實(shí)踐上使我國(guó)農(nóng)村社會(huì)保障始終處于不完善甚至空白的狀態(tài),有相當(dāng)部分社會(huì)保障的內(nèi)容(如養(yǎng)老保險(xiǎn)、醫(yī)療保險(xiǎn)、工傷保險(xiǎn)、生育保險(xiǎn)等)將整個(gè)農(nóng)村人口排擠在外。